Automatic switch.



G. H. HEYDT.

AUTOMATIC SWITCHl APPLICATION man 1uNE10, 191e.

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' -Affy UNITED STATES Y GEORGE H. HEYDT, OF NEW YORK, N. Y. ASSIGNOR T0 'WESTERN ELECTBEG Clifi,

JINCORIOIRATEl), 0F NEW YORK, NYY.,

A COBPOELTON NEW i. )Poll AuToMA'iIc sw'ren.

Application filed June 10, 191s'. Serial No. loiae.

To all feo/wm it Imay concern.' e

Be it known that I, Gnouen H. Heroic, a citizen of the United States, residing at New York, in the county of New York und State of New York, have invented certain new vund useful Improvements in Automatic Switches, of which the following is u full, clear, concise, und exact description. l This invention relates to automatic switches, und more particularly to switches in which u brush-carrying shaft is driven in s rotury direction, u brush set upon such shaft being; arranged to successively engage the terminal sets in u Contact bunk.

The object of this invention is to provide an arrangement by which a rotatable brush is milde to engage contacts arranged in n line in the plone of rotation ofsnid brush,

such line not being un :irc of :my circle whose center is at the axis of rotation. To accomplish this result ,it is necessary thut'the brush be'capuble of variable motion radially. In a preferred form of the invention a brush is fixed to a slide carried-by un erin secured to wrotutable driving shaft, the slide be ing spring-pressed inwardly. 'The desired amount of outward radial motion is 0btuined by the action of u com rotatably mounted on the driving shaft und driven through un idler shaft by suitable gearing.

The cam isso designed, and driven at suoli a speed that it forces out the slide to the extent required by the, angular position of said brush at that particular' time.

In the embodiment shown, the invention is arranged for use in u telephone exchange system, but it is obviously capable of arrangement for other uses.-

-The general operation of the switch of the present disclosure is as follows: A brushcarrying shaft is arranged to be driven in both n -vertical and a rotary direction, the brushes on such shuft'he'ing arranged to engage terminsl sets in e Contact benk of the Well-known panel type.' The brushu shaft is arranged to be stepped, first vertically and then inarotary direction, by means of stepping mechanism which it has not been con sidered necessary to describe, that'shown in Patent No. 815,176 of Keith, Erickson and Erickson, issuedMar. 13, 1906, being of a suitable nature Jfor this purpose.

The invention will be better understood 'from the following detailed description,

Specification of Letters Potent.

reference being had to 'the eeccnipenyins into' two sections l end 2, the upper section containing` the multinles the termie nals of l0() lines, while the lower section contains the multiples of the tip terminals of the suine lines. separate brush for each section, 3', constituting a eet. The sections are further divided horizontally into groups, euch group containing the multinle contests of ten terminals, the contacts oesoh group being oii'se so :is to lie in the n une. k

Only the structure of the switch-op mechanism shown st the l t sill il. scribed, since that or" the structure ut. the right is identical. 4.- curries tixediy secured to it urnes 5 und 6. Also fixed on shaft is a geen wheel Y which engages a pinion 8 secured to en idler shaft 9. A sleeve l0, rotatable on. the she-.ft end mounted thereon, carries coins l?. und .l2 und pinion 13- finedly secured to the pinion brush is fixed to 'this slide l5 passes through a guide aperture in on end piece l?, which ,also serves as e stop for 'the se 16. An anti-friction roller 2S is corri the slide l5 and engages coni 'l.

' The com, oszglesigned in the is arranged to rotate thre speed of the stepping; sliuft, this obtained through suitable proper n geur wheels 7, S, 14C und 13. This `r l of tionl is required since the nrni 5, i. rushing the tn steps necessary to engage the tenth contact, swings over en are oi" ninety degrecs. ln order that the cam may again trie pair 3,

,rotatable snuit be at its greatest radial length at this time,v

vably mounted in suitable bearings. A lifting yoke 19 maintains the gear Wheels in engagement during upward movement of the stepping shaft 4. The shafts 4 and 9 are free to rotate in the yoke 19, and are held in' fixed relation to one another by collars 20, 21 and 22, 23 on shafts. 4 and 9 respectively. I

Soldering terminals for the strips are shown at 24.

By a suitable arrangement of the terminal groups and a change in the shape of the contacting portion of the brush, the switch may be adapted for use in a system in which the rotary motion of the stepping shaft 4 takes l place before the vertical motion. In an ar,-

shaft, a brush carried'thereby, and means rangement of this kind, stepping mechanism of the type disclosed in an application by O. F. Forsberg, Serial No. 6302, tiled February 5, 1915, would be suitable for imparting,

motion to the brush shaft.

What is claimed is '1. In an automatic switch, a rotatable for causin said brush to traverse, during rotation ot said'shaft, a series of contacts,

said contacts being at various distances from the axis of the shaft.

A. 2. In an automatic switch, a rotatableshaft, .a radially movable brush carried contacts, said contacts beingarranged at various distances from the axis of the shaft.

4. In an automatic switch, a rotatable shaft, an yarm mounted thereon, a brush carriage mounted on said arm, a radially movable brush, and means for causing a constantly Varying radial motion of the brush.

5. In an automatic switch, a rotatable shaft, a radially movable brush carried thereby, a series of contacts, said contacts being arranged at various distances from the axis of said shaft, and means for causing said brush, during rotation in the plane of said contacts, to establish connection to any desired one of said contacts.

6. In an automatic switch, a rotatable shaft, an arm mounted thereon, a brush movably carried on said arm, a series of con-- tacts arranged at various distances from the axis of rotation of said shaft, and means for causing said brush to establish connection to any desired one of said contacts.

7. In an automatic switch, a series of contacts arranged in a straight line, a brush rotatable in the plane of said contacts and arranged to -establish connection to any desired one of said contacts.

In witness whereof I hereunto subscribe my name this 8th day of June, A. D. 1916.

GEORGE H. HEYDT. 

